<template lang="html">
  <div class="list" ref="wrapper">
      <div class="">
            <div class="area">
                <div class="title border-topbottom">当前城市</div>
                <div class="button-list">
                    <div class="button-wrapper" >
                        <div class="button">
                                {{this.currentCity}}
                        </div>
                    </div>

                </div>
            </div>
            <div class="area">
                <div class="title border-topbottom">热门城市</div>
                <div class="button-list">
                    <div class="button-wrapper" @click="handleCityClick(item.name)" v-for="item of hot" :key="item.id">
                        <div class="button">
                                {{item.name}}
                        </div>
                    </div>
                </div>
            </div>
            <div class="area" v-for="(item,key) of cities" :key="key" :ref="key">
                <div class="title border-topbottom">
                        {{key}}
                </div>
                <div class="item-list">
                    <div class="item border-bottom"  @click="handleCityClick(innerItem.name)" v-for = "innerItem of item" :key="innerItem.id">{{innerItem.name}}</div>

                </div>
            </div>
          </div>
  </div>
</template>

<script>
import {
	mapState,
	mapMutations
} from 'vuex'
import Bscroll from 'better-scroll'
export default {
	name: 'CityList',
	props: {
		hot: Array,
		cities: Object,
		letter: String
	},
	mounted() {
		//test
		this.scroll = new Bscroll(this.$refs.wrapper)
	},
	computed: {
		...mapState({
			currentCity: 'city'
		})
	},
	methods: {
		handleCityClick(city) {
			// this.$store.commit('changeCity', city)
			this.changeCity(city)
			this.$router.push('/')
		},
		...mapMutations(['changeCity'])
	},

	watch: {
		letter() {
			if (this.letter) {
				const element = this.$refs[this.letter][0]
				this.scroll.scrollToElement(element)
			}
		}
	}
}
</script>

<style lang="scss" scoped>
@import '~scss/varibles';
.border-topbottom {
    &:before {
        border-color: #ccc;
    }
    &:after {
        border-color: #ccc;
    }
}
.border-bottom {
    &:before {
        border-color: #ccc;
    }

}
.list {
    position: absolute;
    top: 1.58rem;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}
.title {
    line-height: 0.54rem;
    background: #eee;
    padding-left: 0.2rem;
    color: #666;
    font-size: 0.26rem;

}
.button-list {
    padding: 0.1rem 0.6rem 0.1rem 0.1rem;
    overflow: hidden;
    .button-wrapper {
        width: 33.33%;
        float: left;
        .button {
            text-align: center;
            margin: 0.1rem;
            border: 0.02rem solid #ccc;
            padding: 0.1rem 0;
            border-radius: 0.06rem;

        }
    }
}
.item-list {
    .item {
        line-height: 0.76rem;
        color: #666;
        padding-left: 0.2rem;
    }
}
</style>
